General

Engineer's Note

This 32GB DDR4-2400 Registered ECC module (RDIMM) is purpose‑built for server platforms, excelling in virtualization, in‑memory databases, and data‑integrity‑critical workloads where stability and 24/7 reliability are paramount. Its dual‑rank x4 organization and registered signal architecture reduce bus loading to support higher density configurations, while ECC protection and a tight CL17 latency ensure robust error correction with responsive data access.

Technical Specs & Insights

1. With 32GB capacity per module, servers can achieve the high memory density needed to consolidate numerous virtual machines and run large in-memory databases without swapping to slower storage.
2. ECC protection continuously detects and corrects single-bit errors in the background, safeguarding critical enterprise data from silent corruption during prolonged 24/7 operations.
3. Registered signal buffering preserves command and address integrity even when all memory channels are fully populated, making large-scale multi-terabyte configurations stable and reliable.
4. The Dual Rank x4 organization amplifies effective bandwidth through bank interleaving, ensuring consistent throughput for heavy analytics and real-time transaction processing.
5. Operating at 2400MT/s, the module delivers a balanced blend of responsive data access and energy efficiency, which keeps latency-sensitive enterprise applications performing predictably under load.

Why These Specs Matter

For your enterprise infrastructure, the Samsung M393A4K40CB1-CRC RDIMM isn't just another component—it is engineered insurance against the silent data corruption that can cascade through a virtualized environment. When you run a dense hypervisor cluster hosting dozens of VMs, the integrated ECC technology continuously detects and corrects single-bit memory errors caused by background radiation, preventing a flipped bit from quietly corrupting a financial transaction log or destabilizing an entire database instance. The registered clock driver at the heart of this 32GB dual-rank module buffers all command and address signals, allowing your server to support massively scaled memory populations without signal degradation. In practice, this means you can fully populate all 24 DIMM slots in a 2U server to build a 768GB in-memory dataset for real-time analytics, and the platform will remain rock-solid under sustained load. The dual-rank x4 organization maximizes internal bank parallelism, so when an in-memory database like Redis or SAP HANA issues concurrent read requests, the module can interleave accesses across multiple internal banks, tangibly reducing latency spikes. Meanwhile, the 1.2V operating voltage directly lowers thermal output in confined rack environments, preserving thermal headroom for faster CPUs while contributing to a lower total cost of ownership. Every design choice here translates to guaranteed uptime and predictable performance for business-critical workloads where seconds of latency mean lost revenue.

Endurance & Reliability

General Virtualization
For general virtualization hosts, 32GB RDIMMs provide a strong balance of capacity and cost-per-gigabyte. Deploy six to eight identical modules in a dual-socket server (three or four per CPU) to populate all memory channels, maximizing bandwidth for mixed VM workloads while leaving slots free for future scaling. A total of 192GB to 256GB comfortably supports dozens of light-to-medium virtual machines without excessive overcommitment.

In-Memory Database
In-memory databases demand both high capacity and data integrity, making ECC registered memory essential. Install the maximum supported number of these 32GB DIMMs—typically 12 or 16 modules in a two-socket system—to reach 384GB or 512GB, allowing entire datasets to reside in RAM. The dual-rank x4 organization and CL17 latency deliver the steady, low-latency access required for real-time analytics with minimal cache misses.

High-Performance Computing (HPC)
HPC clusters benefit from the registered ECC buffer that maintains signal integrity across many DIMMs per node. Configure each compute node with a full population of eight or more 32GB RDIMMs, creating balanced memory channels for sustained bandwidth under parallel MPI or OpenMP workloads. This 2400MT/s speed, while moderate, suits capacity-bound simulations where total memory per core dictates problem size, keeping hardware costs predictable at scale.

Verified Compatibility

Rigorously validated server memory for Dell PowerEdge R740, HPE ProLiant DL380 Gen10, Lenovo ThinkSystem SR650, and compatible systems.

FAQ